Typewriting machine



Nov. 16, 1943. E. L. WISE 2,334,464

TYPEWRITING MACHINE Filed March 18, 1941 2 Sheets-Sheet l ii /0 I O M 'IZZ I U I L I/ SA\ a J I!) QMER'TFWE BY K ATTORNEY Nov. 16, 1943.

E. L. WISE TYPEWRITING MACHINE Fiied March 18,1941 2 Sheets-Sheet 2 EL/"ER L. W/Sf BY I 4% ATTORNEY strokes to the type lever. The power mechanism for operating the intermediate lever comprises a radius bar 36 pivoted at 38 on a rod sup-, ported, on the cover plate 40 of the type carriage, a transmitting link 42 connecting the radius bar with the intermediate lever, a driving.

link having its lower end pivotally connected at 46 with. theradius bar, a continuously rotatingfluted shaft'fljand a pawl 50 mountedon the driving link and arranged to be engaged with the fluted shaft. The driving link is acted upon by a coiled spring 52 which tends to swing the same about its pivotal connection with -the'radiiis bar to carry the pawl away from the fluted shaft, this movement being limited byfjari arresting plate'54, and the driving link is swung" inithe opposite direction to engage the pawlwith the movement of the type bar will be accelerated as it approaches the work, The type head is arranged tomove in a path very nearly perpendicular to the platen adjacent the end of th type-impression stroke of the type lever,

I Certain of the type bars are provided with. two types which are arranged to be brought alternativelylinto,operating position in the manner common inrr'iachin'es of the Elliott Fisher type. The typebar 6 is an example of such a type,

bar. The type head mounted on this bar, the

' spring for holding the head in position, and the lrtrigger forshifting the'head, have substantially the same construction, arrangement and mode of fluted shaft by means of a draft link 56 con-- nected with the upwardly extending armuof ga key lever 58 pivoted at 60, said link having a shoulder arranged 'to-engag'e "apin 62 on the driving link to swing said link into position to' engage the pawl with the fluted shaft. During the downward movement of the driving link to actuate the' type bar, the upper' end thereof is arranged to engage'at'a point adjacent the end of the downward movement ofthlink; a contact plat-e 64, adjustably. mounted-on the sup porting plate 65 for adjustment toward :and from the driving link. The engagement of ithe driving link with-zthe contactplate limits-the swinging movement of the driving link toward the fluted shaft and causes the disengagement of the driving'pawl from said shaft: as said application, has substantially thesame construe tion, arrangement andmode-of operation as the corresponding mechanism-more 1fuly:=,i1lu'str,ated and described saidPatentNo; 2,239,023, referred to above. 11

The.present.:type-=acti ns are similarvincertain respects to the typeactions shown anddescribed in the patent-to:Foothorap, No. 1,251,361, dated December25; 1917, andicontain the feaop'er'ation"as thexzorresponding parts illustrated and -describedin the patent to Foothorap, No.

1, 11 9,14 9,"referred to above. 7 Upon the outer end of the type bar 6 is pivoted; on-an axis 68, a type head 10 upon which are mounted the types 12 and 14 in the angular relation shown inFigs; 1' and 2. Fig. 1 shows the type'head in' normal position on the type bar with the type in position to engage the.

work sheet at the end of the type impress-ion stroke 0fL-the typebarp'. To. placethe type 14' inoperating-position, the type head is shifted to they p0- 'si-t'ion shown in Fig.2;

The movement of thetype head on the type bar'iin a clockwise directionfllFigs. land 2) is limited bythe engagement .ofa stop facey'IS on V the .type head withthe typebar 6, and the movement of the type "head'in' a countereclockwise 7 direction'is limited-bythe engagement of astop tures of slow and easy starting movement: of the type bar. with thegreatest leverage on saidrbar exerted by the-power mechanismtduring the first part of a type impression-stroke 'of th ibar and accelerated movement of the bar asit approaches the printingpoint. ,lAs the type bar mechanism is started on a type impression stroke frointhe position shown in Fig; .1, ,the'arc of movement of the pivotal; connection between the lever; andthe link 20 :is-very -nearly perpen dicular; to the arc of movement of the p votal connection between said link and the type bar- 6 and,- as the type bar descends; th paths-of movement of said. connections -become more nearlyaligned, The type bar wilbe; started smoothly and easily with the, greatestleverage exerted thereon during the. first part of its ovementandthis le erage. .will dimin s -andthe faceQlS; onv-the type. head :with said type ban 7 The engagement-of theserespectivestop faces withythe type. bar determines'the operating. pov sitionirespectively of the types 14 and 12. The type head is locked-in the position? shown'in Fig. 1, by means ofa leaf springall secured to the type bar, theangularly turned end of, whichis arranged to engage behind a projection 82 on the type head. This spring, when the type head. is shifted .to:the "positionshown inFig. 2, engages the opposite sideof the projection 82" on said head and'tends yieldingly to hold the type head itiOn-v s The mechanism for shifting the type head comprises a trigger 84 consisting of a lever pivoted at.;85,to. the type head. This trigger, when swung in aj clockwise direction (Figs. 1 and 2') with relation to thetypeleyenfrom the position shown in Fig. '1, first has a movement independent of the type head in whichit moves the spring 186 out of locking-positionewith relationto the type headandthen shiftsthe type head into'the position shown in Fig; 2- to, locate theatype 14 in operating position, v Whe'n the trig erisswung in the opposite direction with relation to the type lever, the trigger will shift the type head back into theposition shown in Fig. ,1 withrelation to the type lever The construction of the trig ger is fully shown and described in said Foothorap I Patent No. r1,ll9,l l9 and need not be furtherdisclosedherein.. 1 I jhe trigger isarranged to en a e the buffer ring 15 when the type bar is retractedyposition, the engagement. of the triggerwith said-ring then locating the ;type head in position on the type bar so thatthe-type 'l2-1is imposition to be projected :into engagement with the work sheet by the swinging movementof athe type bar. When the types" is to be engaged with'theiwork sheet, the type head isishiftedinto the position sh w Fi urin the W9 en a n movement 6.1 teeter-1 1 V 2,334 ,464; V The mechanism for otheltmpeihead into .7

thiszposition comprises a sstripior that? of semi ringiormationin plan,:the endsaofrwhich areicbna ne'cted by e crossbar zorlstrip 588;" :semi-iring is normallyrsuspendedabove the path'soi-ibheztype heads so that-i1; is located kbeyondthe mathskioli-t lowed :iby the triggers,ifi lacduringitheitype impress: I

sion strokes of the type ibar-sa Thetringphoweyer} is arranged to be) miepressedeinto ztli'ecfpaths'z of the triggers 583 :to shiitithetype -heads dnri'ngilthe type impression 'strokeslof theztypeibarsi'"imithe construction showmzthe semi-ring 136 is iprovided suspended nuprnrcv vertically swinging; earmsi 5915133 means of screwstuds mlpassingfihroughthearms E9 .and vthreadedintoFarms 2. .v 'The supporting arms 92 are secmzed toaaixockshaft FQBlm-onnted,

, carriage andhctednponahy 1a, coilednspringjfia connected withsan gzarmdflfl: attached to said eon else mm mfwno sition"beneath' the .11m; 1:321 andwth Qs'hitt' leveriis'.thensdepressedto carry: 7

wbelowisaid' projection .135; j -The lock rock shait,ithis springconstantlyitendingmol raise the .supporting.:arms 292-andmorrha11yiholdih semi-ring 185 :in elevated position zas showminrFig. 1. Therockshadt is actuatedto depress the-ring 3t intowthe. position shown n figg-ilrbymeans of and carryinga :rol'l H14 anrangedI-toengage albani face 13 6 son? an arm ellfl8fixedi to the rock shaft. The :key lever l 02 is nci'mallyfheld 'in :elevate'diposition .bye coiled spring I 1:0 :and its upward moveme'ntunder .ithe eaotion lot the coiled spring is limited byathevengagement \ofa the* levenwitha stop :bar I 2 acn thecframe zof rthe type "carriage.

It is" important that-rthestrip ring mfi be ioc'ated asubstantiall-ythesame :relationto enter "the shiftable tyLpe sheadswlien inaits -lowered oroperative positionito obtainuniformityhflaction. To

obtain this result, :in I the :present uco'nst'ructi'on, the trip ringcis controlled so that itslowered 110- sition is substantially :parallel with its 'iupper po below la aflocking iBetore :depress ingtheikshift leverfi:the auppei' fiend soil the :lock, lever iswiing., rearwardly toe-swing- :the projecleverlis =mhen= released; allowingwthe lever to he" swung by theection of thospringzlfl into 100kingt'positionas 'SI'IOWHViHWFigQTZ. 'lherlengage- Inent'of lthefpin d 32witmtheprojection"I39 tthenholds the shift lever and the trip ring- 85 in do.

' pressed position; To. release the ashiitilever and the. trip zring; the dipper :en'd lof'stheiockin'g lever Simon. ffheztripirihgfislprouidefi [adjacent-neon; posite endsiwith theiadditional orl auxiliaby arnrs H 4 :each formed-With 9,3101; H fi izi whibheiiga ge's" a screw stud l H! securedinione ofithesuspending arms 192. i When :thestriprlngfis elevatedpthe for ward endsthereof andthe cross strip' fla are engaged with a stop faoe il ifl on the casing ci the type carriage; 'The siot s tli are' so forxned that the studs '1I-l8'='are thenfengaged vfith the-#upper ends of the slots locatethe tripring in "the angular position on the suspending arins 92 scope of theclaims. I i v fiaving explained'the nature and olojecto'f the lzdi isrswungi rearwardlyto @release the pin ,and'the :shift leverand the-ztripxring are then 7 moved back upwardly itoritheir positions by:thecoiledfspring M0. q

1 lSiOf-b understood that-the.;invention"is not limited "to thejpa-rtioular: comstmctioniiaind arrangement of parts :Ofzthe .tillustrated embodie v ment of'i 'the invention, abut Ithat the invention may he embodied in-- -lotherl dorms jrwithini.zthe

invention and havingspecifically described; :a construction embodyingrthe invention in its preferred' form,what-is claimedfiis:

11 A rtypewriting machine comprisihg asubstantially horizontalflat platen, a' type head; a. l. type lever :uponthe outerend .of which :saidatype head is mountedhaving a retracted position sub-- shown in Fig. '1. "Whenthe triprin g is depressed' into the position'shown in Figfili the 'cross strip 8 8 is eneaged: with the rearwardlyprojeoting octions o'fstop brackets l fl sscured to the oasing. 1

The slots :1 HS are so formcd that fthe st ids $18 are' then engaged with -=the lower ends-of said slots. This will locate thetrip'flllg substaliitlally in the position shownih ifiig. 2; parallel withits uppen.pos'ition,' and the ring will then he located in,substantiallyathe same relationtomlll the ,The; trip ring, when in floweredcr operative position, is :located relatively close to the tflggers .84 oftthe shiftable-itype heads so thet lt. is engaged by said triggersat'iaqweryeearly point in. the-type impression'strokes ol the type bars whilev'thetype barris driven' by power regardless of the" adjustment o'f the typehar. operating mechanism. The action of the trip ring u'pon.

the type lieadswill therefore not retard-the movement 'ofsthe type bar's- 'and thefitypes willmak as heavy impressionsas .desirednpon the wotk sheet. ln order=to lock tlie shi'it liey lover lfl inrile pressed position :andthereby-"maintain the s'hlit stantially perpendicular to the platen :and arranged to move the type "head in a path substantially perpendicular tor theplaten .adjacent the "end oithe typeeimpression stroke of .said lever; mechanism through which said lever is actuated having the greatest leverage on said lever at the beginningiofia typeeimpression stroke j and arranged to impartan accelerated movement to the lever in said stroke-two types -mounted c -said type head; means for shiftably stlpporh ing said-head on'the lever to locate the -types selectively --in position to engage o -work sheet supported on theaplaten during 'thetypeaimpres, sio'nf stroke of the type lever, power operated means forsactuatin-g said'meohanism 'too'perate the type lever, contact means'-'associatedw;ith said head and movable to *shift the head, a. trip devicemorm'ally located above the retracted posi- 'tion of sold headand' the'contact means -associ ated therewith and arranged to be lowered into position tome directly} engaged-by said contact meanSj at t-he' beginning ofthe type-impression stroke of the type lever' to shift the head from one position to anotherendmeans :for f lowermg -en raising i said tr p device? 25A typewriting machine comprising-a sub-9 staritially horizontal flat plateau} V -type h'ead, a type "lever *upon the outer-"end n? which said type head is mountedfhavingj a retracted posi- V a t 7 ring lafi itih :operativemositionlioria'numberflofm. strokes inf the itype: ibarsj ai'shiftc lock. level: :124'

stan'tially "perpendicular toiithef' platenladjacent.

- the "end of theitype-impression stroke; of: said lever; mechanism through which saidxleveriis' ac-i- V tuated'having the" greatest leverage onsaid lever,

at thelbeginning of atype-impression strokeand arranged to iimpartaniaccelerated movement to the "lever 'i'nfsaidg stroke, two; types mountedion said' type head, means for shiftably-supporting said'lhead ion.:the leverto locate thextypes' selection'substantially perpendicular'tothe platen and arranged to move the type -head'in a path; sub-v impart accelerated movements tothe levers durin'gsaidstrokes-two typesicarried by each of said head's, *means for shiftably supporting each headlonrthe corresponding lever .to locate the typesss'electively in: positionto engage a work sheetv supported :on the platen during the type impression stroke; of the typelever, a contact device mounted .on each .type head and movable to shift'the .head, -said contact :devices being arranged in. an aircwhenthe .type levers'are in retracted positions a trip device having aroutively i ni position to "engage a i work a sheet sup portedl'cn-thei platen during the type-impression stroke of the type levergpower' operated means for actuating said.mechanismitoioperate the type lever;' contact:a.means associated with said. head and'movable to shift the headya trip device'nor mallyllocatedlabove the retractedposition of said head and the contact means associated therewith and arran'ged to vbe lowered into po'sitionto; be directly engaged byisaid; contact means at the "beginningof the type-impression: stroke :of the atelyarranged contact means tobe engaged by said-contact devices to shiit'the type heads from normal positions, means for supporting said trip device normallyiiabove the; type; heads and the contact 'devices thereon out 'of operative position and for vertical movement to lower the contact means on ,the same to" a position immediately irisiderthe contact devices onsaid: heads so as to bedirectlyiengaged byzsaid contact devices'at' the; beginning :of' the operating strokes of the typerleyer whilezthe type: lever isoperated under power'to shift the .head from-one position to another-and means for lowering and raisingsaid trip device: ,1": A '7 .T jz. I

3; A: typewriting machine comprising .a substantiallylhorizontal fflat platen, a' series :of-typ'e heads; a series of' type levers upon the outer, ends of "which the respective type: heads are mounted',-1 each lever having'aretractedpositionsube stantially perpendicularto the platen and arranged to move the type. head ina path substan ported on the platen during the type impiiession stroke. of the type lever,a contact device mounted on each type head and movable to shift, the

I head, said contact devices being arrangedin; an

are when .-.the type levers are in retracted I posi-rv tions; a tripdevice having; arcuately-arranged contact means to'be engaged byqsaid contact'devices to shift the type head from normal positions, means for jsupportingsaid tripdevice normally above the vtype heads-and the contact devices thereon out ,of, operative position and for vertical movement .to lower the contact means on thesame tov a position immediatelyinside the contact devices on said headsso as to be directlyengaged bysaid contact devices at the. beginning of the operatingstrokes10f the-respecing said tripidevices 4; A pew t n m n om r i Su stantially horizontal fiat platen; a seriesI-of type heads,a series oftype leversllpon theiolltcr ends of which the respectiv;,t l ef heads aremounted, eachlever having a retracted position sub tive type levers and means for lowering aridraisstantiallyqpeipendicular to thgplaten and arranged to moverthe t e head -in a path substantially perpendicular to the platen adjacent the end of each type-impression-stroke, connec- 'tions for operating said levers f rom 1 the power means constructed to p exert thegreatest lever- I e c type-imp e on t o e n a ra ed. t

a eon the respectiveflevers at the beginning of respective type levers, arcuately arranged fixed contact'meansiarranged to be engaged by said contact devices adjacent.theends 'ofthe 're-V V tractingnstrokesfof the type levers to shift the type heads back to normalpositions and. means for I lowering and raisingsaid trip devices. 5. A .typewritingmmacliine :comprising a sub-'- stantially flatpla'tema series of type levers, pow-v er means for operating said levers, a series lot shiftable typeheads mounted on the respective levers, a rrock shaft, one or more. arms on said rock shaft; a contactmemberpivotally suspended on said arms -andarranged .to swing with said, I arms during. a portion of the movement of said arms andto pivot'with relation to said arms dill ing another portion of the movement'of said arm's, devices connected respectively with *said t typeheads for engaging .said member to shift the type,.-heads during the operating strokesof the type levers, manually operable means for.rocking said-shaftto movesaidzcontact member into operative position "and means for holding said contactmember from swinging movement with said arms at one or more'points in the movements of said arms toca'use "a relative pivotal movementqof said member. i I I 6. Atypewriting machine comprising asubstantially flat platen, a series of. type levers, power means ;for operating said levers, a, series of shiftable type heads mounted-on the respec-' tive levers, arock -shaft,-one or more arms on said rock shaft, 'a,contact member pivotally suspended; on andwholly supported by, said arms and arranged to-swing with said arms during-a portion of the movement of said "arms and .to

pivot with-relation to said arms duringt another portion of the movement of said arms, vcontact. I devicesconnected respectively with '-said type heads for engaging saidmember to shift the type heads during the operating strokes or the'type levers, manually operable means forrocking said shafttomove said contact member into operativeiposition and-stopsior arresting the swing inggmovementiofsaidconta-ct member with said arms: to cause the-portion of 1 said contact member adjacent the type;heads to move into positiorr to'be engaged by said contact devices dur- C i h typer mlg g n strokes of thetyp 1e-' 1. lamenting" mac ine-comprising a substantially flat:platen, aqseriescof type levers, P WerLactuatedv-rmeans for, operating said y levers "to project ;the types into; engagement with a worksheflt: Q 1 the platen; a type head mounted upon the outer end of each ofrsaid levers, two

types mounted on said head, means for movably supporting said head on said lever to enable said head to be shifted into position to bring one of said types into contact with the work sheet on the platen or into position to bring the other of said types into contact with the work sheet during the type impression stroke or the type lever, contactmeans associated with each type head and movable to shift said head, a contact device arranged to be engaged by said contact means during 'the type impression stroke of each of said levers'to shift the head, means for shiftably supporting said contact device comprising'one or more pivoted supporting arms, manually controlled mechanism for swinging said arms, means for pivotally supporting said conhead and movable" to shift said head, a contact device arranged to be engaged by said contact means during the type impression stroke of each of said levers to shift the head, means for shiftably supporting said contact device comprising the contact device and the arms, andfmeans to limit the pivotal movement of the device with tact device on said arms, means for shifting said contact device angularly with relation to said arms during the movements of said arms and means to limit the pivotal movement of the device with relation to the arms.

8. A typewriting machine comprising a substantially flat platen, a series of type levers, power actuated means for operating said levers to project the types into engagement with a work sheet on the platen, a type head mounted upon the outer end of each of said levers, two types,

mounted on said head, means for movably supporting said head on said lever to enabl said V lever, contact means associated with each type relation to the arms in both directions.

9. A typewriting machine comprising a substantially flat platen, a series of type levers, power means for operating said levers, a series of shiftable type heads mounted on the respective levers, mechanism for shifting said heads comprising a contact device associated with each head, a transverse rock shaft, akey lever, connections for actuating the rock shaft from the key lever, one or more arms extending forwardly from said rock shaft, a contact device pivoted on said arms on a transverse axi and extending forwardly from said axis and rearwardly therefrom toward the rock shaft and means for limitin; the upward and downward movement of the forward portion of the contact device during the corresponding movements of said arms to cause, the contact device to swing with relation to said arms to locate the rear portion thereof in and out of operative position with relation to the contact devices on the type heads.

ELMER- L. WISE. 

